Prefix overview
Phone numbers in prefix 337-378
This page covers the 337-378 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
337-378
RATE CENTER
LEESVILLE
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - LA
LA
Prefix range
The prefix 337-378 includes numbers from 3373780000 to 3373789999.
This range is associated with the LEESVILLE rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - LA.
Numbers in this prefix
20 numbers